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BiPbSrCaCuO superconductors prepared by the multiple pressing and sintering process (1990)

Wang, Weiguo ; Zhou, Meiling ; Zuo, Tieyong ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 68 (1990), S. 5939-5940

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: Pellets of bulk density 5.5 g/cm3, Tc of 107 K, and magnetic critical current of 104 A/cm2 (77 K, 3×4×10 mm3) were achieved under the multiple pressing and sintering process in the Bi1.84Pb0.34Sr1.91Ca2.03Cu3.06Ox bulk samples. The powder x-ray diffraction shows the existence of the single high-Tc phase. Highly textured microstructures with strong (001) reflections were confirmed by x-ray diffraction on the surface of the pellets. The internal textured microstructures were obviously observed by a scanning electron microscope. No second stage was observed, and the superconducting volume fractions of the Meissner and shielding effects were more than 70% and 90%, respectively, as observed by dc magnetic susceptibility.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.346926

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